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[IEEE 2019 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT) - Coimbatore, India (2019.2.20-2019.2.22)] 2019 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT) - Analysis and Design of Broadband MSA with Hybrid Coupled and Parasitic Patches
摘要： Broadband microstrip antennas are realized using multi resonator techniques such as gap coupled techniques in which fed patch is coupled to parasitic patches, or slot cut inside the same. Here wider bandwidth is achieved by reducing the frequency of higher order modes by increasing the surface current path length and bringing the higher order mode frequency closer to the frequency of fundamental mode of the antenna. The design of a RMSA with a directly coupled and two parasitic patches is reported that yields a bandwidth which is six times of that of the rectangular MSA. This paper presents detailed analysis to highlight upon functioning of broadband microstrip antenna with respect to patch resonant modes. The wider bandwidth is achieved due to the coupling between TM02 mode of directly coupled patch, TM01 mode of two parasitic patches and a composite TM21 mode of fed patch. Design procedure at other frequencies is presented which yields a bandwidth more than 6% with broadside pattern.
关键词： parasitic patches,Direct coupled,gap coupled,hybrid coupled,composite mode
更新于2025-09-19 17:13:59
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Comparative analysis of microstrip-line-fed gap-coupled and direct-coupled microstrip patch antennas for wideband applications
摘要： An attempt is made to improve the impedance bandwidth (S11) of a microstrip antenna by means of the gap-coupling method, yielding a bandwidth of 97.88% for the gap-coupled rectangular microstrip antenna (GC-RMSA) compared with 7.67% for the direct-coupled rectangular microstrip antenna with all dimensions the same. The maximum gain of the proposed (GC-RMSA) design is 6.725 dB with antenna efficiency of 99.86%. The proposed antenna design is analyzed using the IE3D simulator. The microstrip line feed technique is used to energize the antenna, and its performance as a function of the gap between the elements (g) and the width of the feed strip (W) is investigated. The results show that the impedance bandwidth of the gap-coupled antenna depends on the coupling gap between the elements; indeed, as the gap (g) is increased up to a certain level, the bandwidth of the proposed antenna increases, resulting in a wideband characteristic. However, after a certain value of the gap (g), the bandwidth decreases due to spurious radiation, and the antenna characteristic changes from wide to dual band with a corresponding decrease in the bandwidth. The proposed antenna design covers the frequency range from 2.093 to 6.105 GHz, including the C-band, S-band uplink and downlink frequencies, Wi-Fi, Bluetooth, WLAN, and IEEE (a/b/g) standard applications.
关键词： Gap coupled,Bandwidth,Microstrip line feed,IE3D,WLAN,Direct coupled
更新于2025-09-12 10:27:22
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[Lecture Notes in Electrical Engineering] Recent Trends in Communication, Computing, and Electronics Volume 524 (Select Proceedings of IC3E 2018) || Design and Analysis of W-Slot Microstrip Antenna
摘要： In this paper, W-slot microstrip antenna is explored to obtain multiband resonance. The proposed design shows three resonance frequencies which pivot on the structure of W-slot in the radiating patch. The frequency range of the proposed antenna is between 5 and 10 GHz. The operating bands are at 5.1, 8.3, 9.5 GHz and is suitable for C and X bands. The results are analysed on HFSS simulator.
关键词： Truncated corners,W-slot,Gap-coupled feeding
更新于2025-09-09 09:28:46